Internorm Passivhaus Windows & Doors

Internorm offers the most comprehensive range of high-performance, triple-glazed windows and doors for Passivhaus builds, suitable for newbuild, deep retrofit and EnerPHit projects.

For us, it is not just about windows and doors. Internorm also offers essential external shading solutions to avoid solar gain.

So, if you are embarking on a Passivhaus or EnerPHit project, or understand the importance of creating an energy-efficient, sustainable home without going for certification, our Passivhaus experts are here to assist you and your architect to turn your vision into reality.

We have an in-house Passivhaus Designer, who is more than happy to discuss your project, and our experienced distribution partners can advise on the most suitable products for your Passivhaus or low energy project.

Passivhaus, also known as Passive House, is a rigorous, internationally recognised building standard focused on achieving exceptional levels of energy efficiency, comfort and sustainability. By dramatically reducing the energy required for heating and cooling, Passivhaus buildings are helping to shape the future of low-energy, high-performance architecture.

At Internorm, we specialise in premium triple-glazed windows and high-performance, airtight entrance doors designed to meet the demanding requirements of Passivhaus construction. Our market-leading window and door systems minimise heat loss, reduce thermal bridging and contribute to creating comfortable, draught-free indoor environments with stable temperatures throughout the year.

Passivhaus certification can be achieved in both residential and commercial developments, from self-build homes and renovations to large-scale architectural projects. To attain certification, buildings must meet strict performance criteria relating to energy consumption, airtightness and thermal comfort, making careful planning and specification essential from the earliest design stages.

With decades of experience in high-performance glazing, Internorm and our network of expert Distribution Partners can support you throughout your project, helping you select the most appropriate window and door solutions to achieve your sustainability goals.

For architects, Passivhaus Designers and consultants, Internorm also offers 'Windows & Doors for Passivhaus' Continuing Professional Development (CPD) seminars at both intermediate and advanced level. Endorsed by the Passivhaus Trust, the seminar provides valuable insights into specifying high-performance glazing for Passivhaus projects. Passivhaus Designers attending the seminar can also receive two credit points from the Passive House Institute.

Find your local Internorm Partner or book a CPD seminar to start planning your next Passivhaus project.

Windows in passive houses are tripled glazed and frames are also very well insulated in order to fulfil the high requirements on thermal insulation. As 30 to 40% of the window opening consists of the frame, the quality of the frame is paramount.

In detail, passive house windows offer you the following advantages:

• Highly thermally insulating glazing

• Highly thermally insulating frame

• Thermally optimised edge compound

• Professional, thermally optimised installation

Positioning and orientation of passive house windows needs careful planning to guarantee the necessary solar gain. Windows in winter, therefore, let more solar energy into the building than give off warmth to the outside. Larger glazing areas should ideally be positioned south-facing. As the sun stands higher in the sky in summer, less sunlight reaches the interior of the building and the majority of it is reflected. Therefore, solar irradiation on south-facing windows is reduced in summer and normally no extra sun protection is necessary. East or west orientation because of the low position of early morning and late evening sun in summer can easier lead to overheating and possibly requires relevant sun protection.